Log Message:
-----------
Duplicate the resulting Datum or HeapTuple in the former memory context.
This fixes triggers that return a replacement tuple.
Modified Files:
--------------
be/src:
pl.c (r1.15 -> r1.16)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/python/be/src/pl.c.diff?r1=1.15&r2=1.16)